Patents by Inventor Jun Lei

Jun Lei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9472602
    Abstract: A display device is provided. A photovoltaic material (61) is evenly disposed in a display layer (6), so that an array formed by the photovoltaic material (61) forms light transmitting units (62) and the photovoltaic material (61) forms a path. Light emitted by a backlight layer (5) and ambient light are absorbed without affecting the light emission of the display layer (6), and are converted into current. When the current converted from light energy is used for a mobile terminal, the stand by time of the mobile terminal may be increased.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: October 18, 2016
    Assignee: Xiaomi Inc.
    Inventors: Duo Xu, Bin Lin, Jun Lei
  • Publication number: 20160234858
    Abstract: Provided are a resource scheduling method and device; the method comprises: scheduling resource according to the transmission demands; and configuring a frame structure with a non-fixed frame length matching the scheduled resource. The method according to the present invention prevents wastage of wireless resources caused by competition conflict or random back-off, and can better adapt to the demands of different kinds of data services with varied features in the future.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 11, 2016
    Inventors: DONGSHAN BAO, JING WANG, SHENFA LIU, YONGBO ZENG, YUBAO ZHOU, ZHIGANG YAN, JUN LEI, LIJUN PAN, FEIFEI WANG
  • Patent number: 9391760
    Abstract: The present invention provides a method for accessing a wireless network, so as to implement acquisition of system synchronization during the process of accessing the wireless network in the situation that a physical frame structure can be configured dynamically. The method for acquiring system synchronization comprises: searching a physical frame on a current sub-channel; resolving a system information channel (SICH) and a control channel (CCH) in the found physical frame, wherein the SICH indicates a structure of the physical frame, and the CCH indicates allocation of system resources; and acquiring a system parameter from the physical frame by using the resolving result. A device for implementing the above method is further provided.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: July 12, 2016
    Assignee: BEIJING NUFRONT MOBILE MULTIMEDIA TECHNOLOGY CO., LTD
    Inventors: Dongshan Bao, Huijuan Yao, Yubao Zhou, Xiaoyan Yu, Jun Lei, Shenfa Liu, Jing Wang, Lijun Pan, Zhigang Yan
  • Patent number: 9351315
    Abstract: Provided are a resource scheduling method and device; the method comprises: scheduling resource according to the transmission demands; and configuring a frame structure with a non-fixed frame length matching the scheduled resource. The method according to the present invention prevents wastage of wireless resources caused by competition conflict or random back-off, and can better adapt to the demands of different kinds of data services with varied features in the future.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: May 24, 2016
    Assignee: BEIJING NUFRONT MOBILE MULTIMEDIA TECHNOLOGY CO. LTD.
    Inventors: Dongshan Bao, Jing Wang, Shenfa Liu, Yongbo Zeng, Yubao Zhou, Zhigang Yan, Jun Lei, Lijun Pan, Feifei Wang
  • Patent number: 9346724
    Abstract: A method for preparing 2,3,3,3-tetrafluoropropene, including: a) heating and vaporizing hydrogen fluoride and 1,1,2,3-tetrachloropropene (TCP), and introducing hydrogen fluoride and TCP to a first reactor for reaction in the presence of an A-type catalyst to yield a first product mixture including 2,3-dichloro-3,3-difluoropropene (“HCFO-1232xf”), where the mole ratio between hydrogen fluoride and TCP is between 5:1 and 60:1, the reaction temperature is between 200 and 500° C., and the space velocity is between 200 and 2000 h?1; b) preheating the first product mixture including HCFO-1232xf, introducing the first product mixture including HCFO-1232xf to a second reactor for reaction in the presence of a B-type catalyst to yield a second product mixture including HFO-1234yf, where the temperature of the preheated first product mixture including HCFO-1232xf is higher than the reaction temperature of the first reactor and lower than the reaction temperature of the second reactor.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: May 24, 2016
    Assignee: Zhejiang Quhua Fluor-Chemistry Co., Ltd.
    Inventors: Jun Lei, Bo Yang, Yan Zhang, Yang Zhao, Huadong Zhou, Qiang Zhou, Gang Su
  • Publication number: 20160112086
    Abstract: The present disclosure provides electronic devices and methods for using the electronic device. The electronic device includes: a transparent case and a transparent liquid battery. The transparent case is sealed to form a holding cavity in which the transparent liquid battery, a display screen component, a mainboard component, an accessory component and a power control component are disposed. The mainboard component is connected to the display screen component made from transparent material. The mainboard component is connected to the accessory component. The mainboard component is connected to the power control component. The electronic device is made from transparent material so that the electronic device is featured by transparency, without additionally equipping the rear cover of the electronic device with a transparent protective casing.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 21, 2016
    Applicant: Xiaomi Inc.
    Inventor: Jun LEI
  • Publication number: 20160096787
    Abstract: A method for preparing 2,3,3,3-tetrafluoropropene, including: a) heating and vaporizing hydrogen fluoride and 1,1,2,3-tetrachloropropene (TCP), and introducing hydrogen fluoride and TCP to a first reactor for reaction in the presence of an A-type catalyst to yield a first product mixture including 2,3-dichloro-3,3-difluoropropene (“HCFO-1232xf”), where the mole ratio between hydrogen fluoride and TCP is between 5:1 and 60:1, the reaction temperature is between 200 and 500° C., and the space velocity is between 200 and 2000 h?1; b) preheating the first product mixture including HCFO-1232xf, introducing the first product mixture including HCFO-1232xf to a second reactor for reaction in the presence of a B-type catalyst to yield a second product mixture including HFO-1234yf, where the temperature of the preheated first product mixture including HCFO-1232xf is higher than the reaction temperature of the first reactor and lower than the reaction temperature of the second reactor.
    Type: Application
    Filed: December 11, 2015
    Publication date: April 7, 2016
    Inventors: Jun LEI, Bo YANG, Yan ZHANG, Yang ZHAO, Huadong ZHOU, Qiang ZHOU, Gang SU
  • Patent number: 9295002
    Abstract: A method for open loop uplink access power control comprises: estimating the uplink transmission path loss according to received signal power of a station (STA) and the transmit power of a central access point (CAP); determining the transmission bandwidth allocated by the CAP for uplink transmission and deviation adjustment of the CAP; determining a modulation-coding mode and determining requirements of the carrier-to-noise ratio corresponding to the modulation-coding mode; and calculating a target value for adjusting the transmit power of the STA. Also disclosed is a device for open loop uplink access power control.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 22, 2016
    Assignee: Nufront Mobile Communications Technology Co., Ltd.
    Inventors: Dongshan Bao, Lijun Pan, Huijuan Yao, Yubao Zhou, Xiaoyan Yu, Jun Lei, Jing Wang, Shenfa Liu, Zhigang Yan
  • Publication number: 20150369204
    Abstract: An engine ignition control method and system for controlling ignition timing that computes a predicted crankshaft angular velocity based on prior computed and verified crankshaft angular velocity and acceleration and determines a capture window of the next crankshaft position sensor pickup signal for the verification of the predicted crankshaft angular velocity. The ignition control system also utilizes both crankshaft position pickup signals and the intake manifold air pressure measurements for determining the stroke of the combustion cycle in turn providing more accurately timed signals for the fuel injection and ignition systems. During engine starts, the engine ignition control system performs a series of continuous spark-triggering, determines if each spark-triggering being at the correct or incorrect point in the combustion cycle by detecting if there is any engine acceleration and adjusts the generation of the signal for the next spark-triggering accordingly.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 24, 2015
    Inventors: Wai Cheung Ting, Chun Wang, Shi Jun Lei, Tian De Mo
  • Publication number: 20150364528
    Abstract: A display device is provided. A photovoltaic material (61) is evenly disposed in a display layer (6), so that an array formed by the photovoltaic material (61) forms light transmitting units (62) and the photovoltaic material (61) forms a path. Light emitted by a backlight layer (5) and ambient light are absorbed without affecting the light emission of the display layer (6), and are converted into current. When the current converted from light energy is used for a mobile terminal, the stand by time of the mobile terminal may be increased.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 17, 2015
    Applicant: Xiaomi Inc.
    Inventors: Duo Xu, Bin Lin, Jun Lei
  • Publication number: 20150220642
    Abstract: A method for obtaining contact information includes obtaining a contact name entered by a user through a dialing interface and searching a local database according to the contact name to determine whether basic contact information corresponding to the contact name is stored in the local database. If stored, the basic contact information stored in the local database is obtained. If the basic contact information is not stored in the local database, searching a database server on a network is performed to determine whether the basic contact information is stored in the database server, the basic contact information is obtained from the database server when the basic contact information is stored in the database server, and the obtained basic contact information is stored in the local database. The method also includes establishing a communication connection with a contact corresponding to the contact name by using the obtained basic contact information.
    Type: Application
    Filed: December 23, 2013
    Publication date: August 6, 2015
    Inventors: Tao PENG, Xinyu LIU, Wenlin WANG, Jun LEI, Feng HONG
  • Patent number: 9007887
    Abstract: Disclosed is a communication method comprising: determining the length, N, of a random access sequence on the basis of system configuration information, where N is less than or equal to the number of available subcarriers; determining a cyclic shift parameter collection and a cyclic prefix on the basis of a system coverage area as designed; acquiring and on the basis of a MAC address of a central access point (CAP), or of a physical layer identifier thereof, and of a predetermined generator polynomial, generating a PN sequence of length N, then constellation-mapping and subcarrier-mapping the PN sequence; cyclically shifting, on the basis of the cyclic shift parameter, the constellation-mapped and subcarrier-mapped sequence, then orthogonally transforming the cyclically shifted sequence; acquiring the sequence needed, adding the cyclic prefix thereto, acquiring a random access signal; and performing subsequent processing then transmitting to a receiving-end.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: April 14, 2015
    Assignee: Beijing NuFront Mobile Multimedia Technology Co. Ltd
    Inventors: Dongshan Bao, Lijun Pan, Shenfa Liu, Jing Wang, Jun Lei, Zhigang Yan
  • Publication number: 20150085732
    Abstract: A method for open loop uplink access power control comprises: estimating the uplink transmission path loss according to received signal power of a station (STA) and the transmit power of a central access point (CAP); determining the transmission bandwidth allocated by the CAP for uplink transmission and deviation adjustment of the CAP; determining a modulation-coding mode and determining requirements of the carrier-to-noise ratio corresponding to the modulation-coding mode; and calculating a target value for adjusting the transmit power of the STA. Also disclosed is a device for open loop uplink access power control.
    Type: Application
    Filed: March 5, 2012
    Publication date: March 26, 2015
    Inventors: Dongshan Bao, Li Jun Pan, Hui juan Yao, Yubao Zhou, Xiaoyan Yu, Jun Lei, Jing Wang, Shenfa Liu, Zhigang Yan
  • Publication number: 20150057043
    Abstract: A method for a mobile terminal to initiate a communication, the mobile terminal being assigned a plurality of phone numbers, the method including: receiving a communication instruction to initiate a communication with a target phone number; determining whether there are any communication records associated with the target phone number by searching a communication history; if it is determined that there are one or more communication records associated with the target phone number, determining a phone number for use in the communication from the plurality of phone numbers of the mobile terminal based on the one or more communication records associated with the target phone number; and if it is determined that there is no communication record associated with the target phone number, determining the phone number for use in the communication from the plurality of phone numbers of the mobile terminal based on a most recent communication record.
    Type: Application
    Filed: May 7, 2014
    Publication date: February 26, 2015
    Applicant: XIAOMI INC.
    Inventors: Jun LEI, Xinyu LIU, Wenlin WANG, Xingping ZHENG, Kun NIU, Yuxiang LIU
  • Publication number: 20140086168
    Abstract: Disclosed in present invention is a wireless communication system, comprising: a CAP, for determining a structure of a current physical frame according to scheduled transmission resources, and sending information for indicating the structure of the current physical frame in the current physical frame; and at least one STA communicating with the CAP, for determining the structure of the current physical frame according to the information for indicating the structure of the current physical frame, the length of each physical frame depending on the structure of the current physical frame and being not fixed. Also disclosed are two devices for wireless communication.
    Type: Application
    Filed: March 22, 2012
    Publication date: March 27, 2014
    Inventors: Dongshan Bao, Jing Wang, Shenfa Liu, Jun Lei, Lijun Pan, Zhigang Yan, Feifei Wang
  • Publication number: 20140086169
    Abstract: The present invention provides a method for accessing a wireless network, so as to implement acquisition of system synchronization during the process of accessing the wireless network in the situation that a physical frame structure can be configured dynamically. The method for acquiring system synchronization comprises: searching a physical frame on a current sub-channel; resolving a system information channel (SICH) and a control channel (CCH) in the found physical frame, wherein the SICH indicates a structure of the physical frame, and the CCH indicates allocation of system resources; and acquiring a system parameter from the physical frame by using the resolving result. A device for implementing the above method is further provided.
    Type: Application
    Filed: March 7, 2012
    Publication date: March 27, 2014
    Applicant: BEIJING NUFRONT MOBILE MULTIMEDIA TECHNOLOGY CO., LTD
    Inventors: Dongshan Bao, Huijuan Yao, Yubao Zhou, Xiaoyan Yu, Jun Lei, Shenfa Liu, Jing Wang, Lijun Pan, Zhigang Yan
  • Publication number: 20140064206
    Abstract: Provided are a resource scheduling method and device; the method comprises: scheduling resource according to the transmission demands; and configuring a frame structure with a non-fixed frame length matching the scheduled resource. The method according to the present invention prevents wastage of wireless resources caused by competition conflict or random back-off, and can better adapt to the demands of different kinds of data services with varied features in the future.
    Type: Application
    Filed: March 22, 2012
    Publication date: March 6, 2014
    Inventors: Dongshan Bao, Jing Wang, Shenfa Liu, Yongbo Zeng, Yubao Zhou, Zhigang Yan, Jun Lei, Lijun Pan, Feifei Wang
  • Publication number: 20140022884
    Abstract: Disclosed is a communication method comprising: determining the length, N, of a random access sequence on the basis of system configuration information, where N is less than or equal to the number of available subcarriers; determining a cyclic shift parameter collection and a cyclic prefix on the basis of a system coverage area as designed; acquiring and on the basis of a MAC address of a central access point (CAP), or of a physical layer identifier thereof, and of a predetermined generator polynomial, generating a PN sequence of length N, then constellation-mapping and subcarrier-mapping the PN sequence; cyclically shifting, on the basis of the cyclic shift parameter, the constellation-mapped and subcarrier-mapped sequence, then orthogonally transforming the cyclically shifted sequence; acquiring the sequence needed, adding the cyclic prefix thereto, acquiring a random access signal; and performing subsequent processing then transmitting to a receiving-end.
    Type: Application
    Filed: March 23, 2012
    Publication date: January 23, 2014
    Applicant: Beijing NuFront Mobile Multimedia Technology Co., Ltd.
    Inventors: Dongshan Bao, Lijun Pan, Shenfa Liu, Jing Wang, Jun Lei, Zhigang Yan
  • Patent number: 7648216
    Abstract: In a method for printing on a print media using nozzles in a printhead, it is determined as to whether one or more of the nozzles are out. In response to the one or more of the nozzles being out, the print media is micro-linefed between at least two printing passes of the printhead when the printhead is substantially in position to print onto a margin section of the print media. The micro-linefeeding includes activation of a print media feed means to advance the print media for a distance that is substantially smaller than a normal advance of the print media, to thereby reduce printing defects in the margin section caused by one or more nozzles that are out.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: January 19, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Chee-Wah See Toh, Kok-Foo Chee, Pock-Chueng Teo, Wei-Chun Lim, Jun Lei
  • Publication number: 20080055352
    Abstract: In a method for printing on a print media using nozzles in a printhead, it is determined as to whether one or more of the nozzles are out. In response to the one or more of the nozzles being out, the print media is micro-linefed between at least two printing passes of the printhead when the printhead is substantially in position to print onto a margin section of the print media. The micro-linefeeding includes activation of a print media feed means to advance the print media for a distance that is substantially smaller than a normal advance of the print media, to thereby reduce printing defects in the margin section caused by one or more nozzles that are out.
    Type: Application
    Filed: August 30, 2006
    Publication date: March 6, 2008
    Inventors: Chee-Wah See Toh, Kok-Foo Chee, Pock-Chueng Teo, Wei-Chun Lim, Jun Lei